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Finding the Fourth Proportional to 630,746.80, 946,271.40 and 210,026.48

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Solution

The fourth proportional to 630,746.80, 946,271.40 and 210,026.48 is: 315,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,746.80 : 946,271.40 = 210,026.48 : x
  2. Step 2: Convert to fraction form
    630,746.80/946,271.40 = 210,026.48/x
  3. Step 3: Cross multiply
    630,746.80x = 946,271.40 × 210,026.48
  4. Step 4: Simplify right side
    630,746.80x = 198,742,051,266.67
  5. Step 5: Solve for x
    x = 198,742,051,266.67/630,746.80
  6. Step 6: Final answer
    x = 315,090.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.